A KEY TO THE FAMILIES 



PAGH 



g. Lobes of ovary two to 

 five, with a common 

 style. 



h. Ovary two- to three- 

 lobed. 



Limnanthaceae 278 

 h. Ovary five-lobed. 



Geraniaceae 274 

 g. Ovaries with separate 



styles. Ranunculaceae 126 

 e. Stamens inserted on the 



calyx. 

 f. Stamens twice as many as 



the pistils. Crassulaceae 192 

 . Stamens not twice as many 



as the pistils, 

 g. Stipules present. 



Rosaceae 218 

 g. Stipules absent. 



Saxifragaceae 196 

 C. Ovary one, the styles and stigmas 



one to several. 

 d. Ovary with one cell and one 



placenta. 



e. Corolla forming standard, 

 wings and keel; filaments 

 mostly united. Fabaccac 242 

 e. Corolla not of standard, wings 

 and keel; filaments mostly 

 not united. 



f. Stamens ten or five; fruit 

 smooth, slender. 



Cassiaccac 264 

 f. Stamens three or four; 

 fruit spiny, globose. 



Kramer -iaceae 268 

 d. Ovary with one or more cells 

 and styles, and two or more 

 placentae and stigmas, 

 c. Ovary one-celled. 



f. Corolla irregular; petals 

 and sepals five. 



Violaceac 296 



f . Corolla regular or nearly so. 



g. Ovules attached at the 



center or bottom of the 



ovary. Caryophyllaceae na 



g. Ovules attached on two 



placentae. 



h. Stamens equal; pod 

 on a stalk. 



Capparidaceae 186 

 h. Stamens unequal; 

 pod without a stalk. 



Crucijerae 174 

 0. Ovary more than one-celled. 

 f. Ovary three-celled; trees 

 with palmate leaves. 



Hippocastanaceae 280 

 f. Ovary more than three- 

 celled. 

 g. Cells of ovary as many 



as the sepals, 

 h. Anthers opening by 

 terminal pores; dwarf 

 evergreen shrubby 

 plants. Pyrolaceae 354 

 h. Anthers opening by 

 longitudinal slits. 



zvii 



